If your dog has been burying its nose when it sleeps, this post will show you likely reasons why and what you can do about them.
Why does my dog bury his nose when he sleeps?
The most likely reason why your dog buries its nose when it sleeps is that it is trying to shield its nose from the elements. This is even likely to be the case if it does it inside where it is warm. The reason for this is that it would have been beneficial for its ancestors to shield their noses from the cold in the wild and it is likely that your dog has inherited their adaptation to shield their noses.
Another possible cause is that your dog is trying to block light from getting to its face. This would be more likely if your dog does it when it is trying to sleep in a bright room and if it covers its eyes as much as its nose.
A part of the cause could also be that your dog simply finds it comfortable to shield its nose. This would be more likely if your dog has always done it.
Consider if your dog always buries its nose when it sleeps. If your dog does not always do it, the timing might have something to do with it.
What to do about my dog burying its nose when it sleeps?
If your dog has not been behaving unusually in other ways, the easiest option would be to let your dog continue doing it.
If your dog only does it when it sleeps in certain rooms, it could also help to let your dog sleep in rooms that are darker.
Why does my dog hide its face when it sleeps?
The reason why your dog hides its face, when it sleeps, is most likely to be that it is shielding its face from the elements and that it is an inherited trait.